MALICIOUS
156
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF file was flagged by a machine learning classifier and ClamAV as malicious, specifically as a phishing trojan. It contains numerous embedded URLs, many of which point to compromised WordPress sites and appear to form a link farm. The presence of these links suggests an attempt to lure users to external malicious resources, likely for phishing or malware distribution.
Machine Learning
- Nyx PDF Classifier malicious score 0.9956
Heuristics 6
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://interstyle.org/content/xuploadimages/file/2324264036.pdf In PDF document text
- http://fantalife.nl/userfiles/file/23197653159.pdfIn PDF document text
- https://ercrs.org/wp-content/plugins/super-forms/uploads/php/files/fvfop7a7gt76dmos80k2jace0o/xubopilawifubipapapu.pdfIn PDF document text
- https://aashianarealty.com/file/kimutuwinosojofilu.pdfIn PDF document text
- http://www.absolutecateringla.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606ef3be376d8---goramo.pdfIn PDF document text
- https://hightechrustremovers.nl/wp-content/plugins/formcraft/file-upload/server/content/files/160e86bab18ad7---jinasavatepigibesulorisa.pdfIn PDF document text
- http://www.clc-engineering.com/siteuploads/editorimg/file/zobatimulotofesidarugal.pdfIn PDF document text
- https://www.wflorlando.com/wp-content/plugins/super-forms/uploads/php/files/c94c08dc0c9142de138e464c4ff18dc8/15345746636.pdfIn PDF document text
- http://ngpsusa.com/wp-content/plugins/super-forms/uploads/php/files/9siiucjs8kds95093onbih4lq5/10228284079.pdfIn PDF document text
- http://lbs.ac.at/wp-content/plugins/super-forms/uploads/php/files/q1e6lmnjass8h20c2haq4r876k/vapolawewenipe.pdfIn PDF document text
- https://helicopterleasingservices.com/userfiles/files/5290996670.pdfIn PDF document text
- https://inverpalmas.com/aym_image/files/wevuv.pdfIn PDF document text
- http://www.loockuniformes.com.br/home/wp-content/plugins/formcraft/file-upload/server/content/files/160a5f17169410---kanumumumer.pdfIn PDF document text
- https://pet-fashion.ro/mm/file/12737204741.pdfIn PDF document text
- http://www.tif.cn/wp-content/plugins/super-forms/uploads/php/files/ro3e7mulq7ma9k20ore1t8p00m/rufuge.pdfIn PDF document text
- http://bensonhigh67.com/clients/55910/File/28644678320.pdfIn PDF document text
- http://zadonskiy.ru/wp-content/plugins/formcraft/file-upload/server/content/files/1606fd7c9314ab---29596589178.pdfIn PDF document text
- http://www.expo-hotel.com/english/wp-content/plugins/formcraft/file-upload/server/content/files/160bab012c6e69---rejuvawej.pdfIn PDF document text
- http://residencecarlofelice.com/userfiles/files/kajofirerufikenugedaf.pdfIn PDF document text
- https://naucharts.com/ckfinder/userfiles/files/zumazoxulewubefogopejela.pdfIn PDF document text
- http://crystalnymph.by/wp-content/plugins/super-forms/uploads/php/files/1fbf13a074824629bfc4fc52db6a6134/72082339318.pdfIn PDF document text
- https://chmelo.hu/sites/default/files/file/mimipusimidaz.pdfIn PDF document text
- http://www.pianoszimmermann.com.br/wp-content/plugins/formcraft/file-upload/server/content/files/160711d3c1d3da---fojokalizowajonuxazu.pdfIn PDF document text
- https://feedproxy.google.com/~r/skout/mBVl/~3/zMnd8XtcwSM/uplcv?utm_term=how+to+type+exponents+in+powerpointPDF link annotation
- http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
- http://purl.org/dc/elements/1.1/In PDF document text
- http://ns.adobe.com/pdf/1.3/In PDF document text
- http://ns.adobe.com/xap/1.0/In PDF document text
- http://ns.adobe.com/xap/1.0/mm/In PDF document text
- http://ns.adobe.com/xap/1.0/rights/In PDF document text
- http://dejavu.sourceforge.netIn PDF document text
- http://dejavu.sourceforge.net/wiki/index.php/LicenseIn PDF document text
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000e646.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xE646 | 10332 bytes |
SHA-256: e3f34ce1c5f4d41da137373b63f470eef31e49a1456d238b948d719fb08d6e60 |
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font_01_sfnt_off0000fdc4.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xFDC4 | 17020 bytes |
SHA-256: fab5a4088e2e0de0806330e16a2e16b91c23ee59bd185baca764837a50165821 |
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font_02_sfnt_off00012a2f.bin |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x12A2F | 16792 bytes |
SHA-256: 9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
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